# Chapter 8 | Triangle and Its Properties | Class-7 DAV Secondary Mathematics

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## Chapter 8 Worksheet 4 | Triangle and Its Properties | Class-7 DAV Secondary Mathematics

1. The hypotenuse of a right triangle is 17 cm long. If one of the remaining two sides is of length 8 cm. find the length of the third side.

2. The length of the hypotenuse of a right triangle is 13 cm. If one of the side of the triangle be 5 cm long, find the length of the other side.

3. The length of two sides of a right triangle are equal. The square of the hypotenuse is 800 cm2. Find the length of the each side.

4. Two poles of heights 6 m and 11 m stand on a plane ground. If the distance between their feet is 12 m, find the distance between their tops.

5. Find the length of the diagonal of a rectangle whose sides are 15 cm and 8 cm.

6. The foot of a ladder is 6 m away from a wall and Its top reaches a window 8 m above the ground. If the ladder Is shifted In such a way that Its foot Is 8 m away from the wall. to what height does Its top reach?

7. A right angled triangle is isosceles. If the square of the hypotenuse is 50 m2, what is the length of each of Its sides?

8. If the sides of a triangle are 3 m, 4 m and 6 m long, determine whether the triangle is 3 right angled triangle.